Lock.



' M. Mumo.

, LOCK.V

APPLICATION FILED MAY 23. 19|?.

1,242,224. Patented oet. 9, Y1917'.

(g1/mund o1,

M Maw@ MRWZCO,

l SbjectvoftlieEmperorgof Austria,

i notatiol-liof'thedoor knobs..

1 traction at theih'oltsemayabe .used for effeeti specically claimed. ,i11-

'acters of reference indicate likeuparts in @retentit-at BENiIfaYmtANJzA Laizlrlt'iewfandiuseful'Improvemeirtsii special.refereneeaoithat typeaot @aki-,which ingilogokingeefibotha beltiandiknqbil .in ;gfWbh'lfthe 'above andohhen'iobjeets inl-.view g' as Will-be herein;atteritapparentl nthgfinverrv tiom;:icon ssts iinf.'genealmilcertainiilevelIde-k tails of .1; constructiqn., Tand combinations Y of parte heeinafr fiif described, illustrated in the" accompanying drawinggi Vand In the accompanyingrdcrailiviN ,flrlie char-f casing of a lockfc'onstructed in accordance 39 sc that the lugmaypas's into suchopen'-v With this invention, the inner portions of ing when the spindle is slid back and this. the lock being shown yin elevation. l Y* Will Vpreventrotation of -the spindlejand Fig. 2 is a` section on the line V.2-2.. of cam plate and kWill also prevent, movement;V 40 Fig. longitudinally of the bolt. Fig. 3 is a section on'the lineB-B of In order .to maintain the vcam plate inop- Fig. 2. Y erative relation'to the Vlug 39 there isfpro Fig. 4 is a detail perspective view of the vided a 'coil spring v40 which surrounds the improved locking bolt. spindle Vafndbears at one endv against one of l In carryingout the objects of this inventhe sides 10 of the casingvvhile thek other 100 i v tion there is provided a casing having side end bears against the earn plate v34.- 1

Walls 10, a front edge Wall 11, a rear edge" In order to vprovide for additional .lock-A Wall 12, bottom Wall 13 and top Wall 14. ing of the door, as from the insideof a room Within this casing is flXeda platev 15 havin or thelike there is `also used inthe casing. at opposite edgesflanges 16 Which-arepro# a bolt 411reciprocably mountedvin guides 42 105 vided withV openings '17 adapted vto receive and norrnallyurged forward by/a spring 43. the reduced ends l8 iand` g19 Vof a kvlocking This'boltis controlled by authumb latch 44 bolt plate 20.V Thislocking' bolt plate 20 `IQaSSing'thrOu'g l an `opening -45 in the Wall isV provided onV its forward end With a 14 of thefcasing.,l f beveled nosed head 21 Whichis reciprocably In the .ordinary use yof the device the 110 lnaciste 

